Ordinal Numbers


learn ordinal numbers

Ordinal Numbers

Ordinal numbers are used when we talk about the "order" or the "position" of something.
The word "order" is also to be found in "ordinal" so you can remember those numbers in this way. There are also cardinal numbers. If you don't know them yet you should click on the link and go to the lesson about the cardinal numbers.

Examples:
I  was the first person, who arrived at the finish.
She flew to Europe for the first time in her live.

The important thing here is that you need to know four endings. The "st", "nd", "rd" and "th" are the only endings you need to know. 
  The "st" is only used for the 1. If a numbers end with 1 the "th" must come. But because eleven has his special name it doesn't end with first ( it is not ten-first because otherwise the cardinal number for 11 would be ten-one.).
  The ending "nd" only is used for 2. Twelve becomes twelfth because of the same rule for eleven.
  The ending "rd" is only used for 3. And because of the same reason thirteen becomes thirteenth.

Maybe you realised that some numbers have a "ie" instead of an "y" inside of them. For example thirty becomes thirtieth. This happens because we chance the "y" to an "ie", if there's a consonant behind the "y".

Do not forget to watch the video so you can learn the pronunciation of those numbers.


1st
2nd
3rd
4th
5th
6th
7th
8th
9th
10th
11th
12th
13th
14th
15th
16th
20th
21th
22th
23th
27th
30th
40th
50th
60th
70th
80th
90th
100th
101th
173th
200th
1000th
1000000th
first
second
third
fourth
fifth
sixth
seventh
eighth
nineth
tenth
eleventh
twelfth
thirteenth
fourteenth
fifteenth
sixteenth
twentieth
twenty-first
twenty-second
twenty-third
twenty-seventh
thirtieth
fortieth
fiftieth
sixtieth
seventieth
eightieth
ninetieth
hundredth
hundred and first
hundred and seventy-third
two hundredth
thousandth
millionth